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Title: Self-repairing polymer networks for high-performance coatings : final report on Project F12-AR12
Authors: Divan, Brooke A.
Lampo, R. (Richard)
Clark, Lawrence.
Keywords: Polyurethanes
Protective coatings
Corrosion and anti-corrosives
Corpus Christi Army Depot (Tex.)
Publisher: Construction Engineering Research Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CERL TR-18-28
Abstract: This project demonstrated the capabilities of a self-repairing additive in a polyurethane topcoat (MIL-PRF-85285 Type II, Class H) applied to the exterior hangar doors in the severely corrosive environment at Corpus Christi Army Depot, Texas. Many conventional coatings, when scratched or abraded, may develop corrosion that can lead to rapid deterioration of the substrate steel. The demonstrated self-repairing coating system was also applied to test panels exposed to atmospheric weathering and salt fog testing for 2,000 hours. While the self-repairing coating showed promise on the test panel exposure tests, the system was not able to protect the steel hangar doors due to the excessive mechanical impacts and stresses they are subjected to during daily operations. Department of Defense implementation of the demonstrated self-repairing coating is not currently recommended for use on infrastructure. Further evaluation would be needed to match the self-healing capabilities of the demonstrated coating with lighter-duty steel infrastructure components not subjected to the degree of impact and abrasion as the subject hangar doors. Because the self-repairing coating system did not perform any better than the conventional control coating in this project, the return on investment was zero.
Description: Technical Report
Gov't Doc #: ERDC/CERL TR-18-28
Rights: Approved for Public Release; Distribution is Unlimited
Size: 92 pages / 9.617 Mb
Types of Materials: PDF/A
Appears in Collections:Technical Report

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